.online-content {
    width: 1200px;
    margin: 50px auto;
    border: 1px solid slategray;
}

.online-content div:nth-child(2) {
    margin: 20px auto;
}

.online-content div div span:first-child {
    color: #e69137;
    font-size: 30px;
    line-height: 30px;
}

.online-content div div span:last-child {
    color: slategray;
    font-size: 20px;
    line-height: 30px;
}

.online-content div:nth-child(2) div {
    display: flex;
    justify-content: center;
}

/*============================提交内容=======================================*/
/*.content {*/
/*    display: flex;*/
/*    flex-direction: column;*/
/*    align-items: center;*/
/*}*/
.content {
    width: 800px;
    margin: 30px auto;
}

.content input[type=text] {
    width: 800px;
    background-color: silver;
    height: 50px;
    font-size: 50px;
    border: 1px dashed darkslategrey;
}

.content textarea {
    width: 800px;
    background-color: silver;
    font-size: 50px;
    border: 1px dashed darkslategrey;
    height: 200px;

}

.content div:last-child {
    /*width: 100px;*/
    /*margin: auto;*/
    display: flex;
    justify-content: center;

}

.content input[type=button] {
    width: 200px;
    height: 50px;
    margin: 10px;
    background-color: #e69137;
}

.content div:nth-child(odd) {
    line-height: 50px;
}

